Work

Optical Analogues for Massless Dirac Particles and Conical Diffraction in One Dimension

Year: 2012

Type: article

Abstract: We demonstrate that light propagating in an appropriately designed lattice can exhibit dynamics akin to that expected from massless relativistic particles as governed by the one-dimensional Dirac equation. This is accomplished by employing a waveguide array with alternating positive and negative effective coupling coefficients, having a band structure with two intersecting minibands. Through this approach optical analogues of massless particle-antiparticle pairs are experimentally realized. One-dimensional conical diffraction is also observed for the first time in this work.

Source: Physical Review Letters

DOI: 10.1103/physrevlett.109.023602

Authors: J. M. Zeuner, N. K. Efremidis, R. Keil, F. Dreisow, D. N. Christodoulides, A. Tünnermann, S. Nolte, A. Szameit

Institutions: Friedrich Schiller University Jena, University of Crete, University of Central Florida

Language: English

Topic: Topological Materials and Phenomena

Subfield: Condensed Matter Physics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: green

OpenAlex ID: W2328717021

FWCI: 4.519

Cites: 23

Cited by: 87

Related to: 10